1 /* $NetBSD: citrus_db_file.h,v 1.4 2008/02/10 05:58:22 junyoung Exp $ */ 2 3 /*- 4 * Copyright (c)2003 Citrus Project, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _CITRUS_DB_FILE_H_ 30 #define _CITRUS_DB_FILE_H_ 31 32 /* 33 * db format: 34 * +--- 35 * | header 36 * | - magic 37 * | - num entries 38 * +--- 39 * | entry directory 40 * | +------------ 41 * | | entry0 42 * | | - hash value 43 * | | - next entry 44 * | | - key offset 45 * | | - key len 46 * | | - data offset 47 * | | - data size 48 * | |--- 49 * | | entry1 50 * | | .. 51 * | | entryN 52 * | +--- 53 * +--- 54 * | key table 55 * | - key0 56 * | ... 57 * | - keyN 58 * +--- 59 * | data table 60 * | - data0 61 * | ... 62 * | - dataN 63 * +--- 64 */ 65 66 #define _CITRUS_DB_MAGIC_SIZE 8 67 #define _CITRUS_DB_HEADER_SIZE 16 68 struct _citrus_db_header_x { 69 char dhx_magic[_CITRUS_DB_MAGIC_SIZE]; 70 uint32_t dhx_num_entries; 71 uint32_t dhx_entry_offset; 72 } __packed; 73 74 struct _citrus_db_entry_x { 75 uint32_t dex_hash_value; 76 uint32_t dex_next_offset; 77 uint32_t dex_key_offset; 78 uint32_t dex_key_size; 79 uint32_t dex_data_offset; 80 uint32_t dex_data_size; 81 } __packed; 82 #define _CITRUS_DB_ENTRY_SIZE 24 83 84 #endif 85